Aluminium oxide composition, substrate comprising same, and manufacturing method thereof

Abstract

The present specification relates to an aluminum oxide composition, a substrate including the same, and a method for manufacturing the same.

1 . (canceled) 
     
     
         2 . A substrate comprising:
 a substrate;   an aluminum layer provided on at least one surface on the substrate and comprising one or more of aluminum, aluminum nitride, and aluminum oxynitride; and   the aluminum oxide composition provided on at least a portion of an upper surface and side surfaces of the aluminum layer,   wherein the aluminum oxide composition is provided at 90% or more of an area of one surface of the aluminum layer facing the substrate,   wherein the aluminum layer is in a form of a film, and   wherein the substrate has a transmittance of 80% or more and less than 100%.   
     
     
         3 . (canceled) 
     
     
         4 . The substrate of  claim 2 , wherein a contact angle of the substrate with respect to water is 10 degrees or less. 
     
     
         5 . (canceled) 
     
     
         6 . The substrate of  claim 2 , wherein an adhesion of the aluminum oxide composition is more than 100% of the adhesion of the aluminum layer. 
     
     
         7 . The substrate of  claim 2 , wherein the substrate comprising the aluminum oxide composition has a haze value which is decreased as compared to a substrate which does not comprise the aluminum oxide composition. 
     
     
         8 - 10 . (canceled) 
     
     
         11 . A method for preparing an aluminum oxide composition, the method comprising:
 immersing an aluminum layer comprising one or more of aluminum, aluminum nitride, and aluminum oxynitride in water,   wherein the water further comprises a base, and   wherein a PH range of the water is pH 7 to pH 13.   
     
     
         12 . The method of  claim 11 , wherein a temperature of the water is 40° C. to 100° C. 
     
     
         13 . The method of  claim 11 , wherein the aluminum layer is immersed in water for 30 minutes or less. 
     
     
         14 - 15 . (canceled) 
     
     
         16 . A method for manufacturing a substrate, the method comprising:
 preparing a substrate;   forming an aluminum layer comprising one or more of aluminum, aluminum nitride, and aluminum oxynitride on at least one surface on the substrate; and   forming an aluminum oxide composition on at least a portion of an upper surface and side surfaces of the aluminum layer by the method for preparing an aluminum oxide composition according  claim 11 .